Improvement in machines for making horseshoe-nails



. 3Sheets-$heetL J. M. LAUGHLIN' MACHINE FOR MAKING HORSESHOE NAILS. N,189,11-Z PatentedAprilS, 1877.

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MACHINE FOR MAKING HORSESHOE NAILS. ,139,111 Patented Apri13, 1877.

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3 Sheets-Sheet 3. J. M. LAUGHLIN.

MACHINE FOR MAKING HORSESHOE NAILS. 130189.112. Patented April 3, 1877.

VViZneases= 1.: '1TEID STATES JOSEPH M. LAUGHLIN, 0F, BOSTON,MASSACHUSETTS.

IMPROVEMENT IN MA'CHINES F OR MAKING HORSESHOE-NAIL'S.

Specification forming part of Letters Patent N {$9.1 [2, dated April 3,1877 application filed September 21, 1876.

To all whom it may concern Be it known that I, JOSEPH LAUGHLIN, ofBoston, in the county of Snffolkand State of Massachusetts, haveinvented certain new and useful Improvements in Machines for MakingHorseshoe-Nails; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to letters of referencemarked thereon, which form a partof this specification.

' My invention relates to improvements in machines for makinghorseshoe-nails; and consists of the combination of a beveling-machinecomposed of a pair of rollers, one of which is provlded with an annularring or projection for the purpose of forming the groove in thenail-plate that serves for the formation of the point or bevel of thenail when punched by the punching-machine; the said beveling-machinehaving an intermittent but positive motion' imparted to it from thepunching-machine, and suitable connecting mechanism between the twomachines. The object in view is to bevel and run the nailplate betweenthe rollers, and to let the rollers and nail-plate held between themremain at rest during the time the punch on the punching-machineperformsits work in punching the nails from the plate. After thepunchhas performed its work, and has ascended above the plate, the rollersare automatically set in a rotary motion, and thus bevel and present anew portion of the plate to the action of the punching-machine. TheWidth of the nail-plate may be such as to present one or more lengths ofnails to be punched atone operation from the said plate, and thepunching-machine may be provided with one or more punches, so as topunch one or more nails at each descent of the punchingmachine, as maybe desired.

In this manner, I am able to produce aiinished hail from a nail-platewith one single machine'that embodies in itself a beveling and feedingmachine, consisting of the rollers aforesaid, and a punching-machine.

The nail-plate that is shaped between the rollers is to be presented tothe action of i the punch, of theexact shape, or nearly so,iot

the longitudinal section of a nail, and the nail-plate is to be in formof long and narrow strips of homogeneous metal, theadvantages of whichare that I am able to produce better nails, and to run the machine alonger time witho ut stopping.-

On the accompanying drawings, Figure 1 represents a plan of myinvention. Fig. 2 represents a sectional side elevation of the same.Fig. 3 represents a sectional front elevation. Fig. 4 represents a sideview of the roller used for shaping the nail-plate, and Fig.5 representsa cross-section on the line A B shown in Fig. 4.

Similar letters refer to similar parts Wherever they occur on thedifferent parts of the drawings.

a represents the frame of an ordinary punching-machine, of which b isthe driving-shaft. c is the driving or balance wheel. 01 d are thebearings, and e the block or head moved up and down in the guides ff bymeans of a crank or eccentric on the driving-shaft b, or in any otherwell-known manner. g g are the punch-holders in the lower part of thehead 0, and h h are the punches secured in their proper positions bymeans of the screws M or equivalent device. k k represent the dieholdersprovided with set-screws l l, or equivalent and well-known devices foradjusting .and securing the die min its proper position in relation tothe punches h h. n n represent the rollers, movable around their axis inhearings in theframes 0 0, and provided with regulatingscrews 10 p andlocking-gears q q in the ordinary way. The roller n receives anintermittent rotary motion from the driving-shaft b on thepunching-machine, by means of the eccentric r, secured to the shaft b,acting upon a lever, s, the rear end of which is connected to a rod, t,havinga pawl, t, in its lower end that operates a ratchet-Wheel, u, onthe shaft of the roller 1%. Springs 0; w are shown,for the purpose ofraising the pawl 15 as soon as the eccentric 1 ceases to act upon thelever s, and for the purpose of holding the said pawl 15 in contact withthe teeth of the ratchet-wheel u.

I wish, however, to state that the exact connecting mechanism from thepunching-machine to the rollers, as shown in the drawings,

. for the purpose of producing an intermittent motion on the rollersfrom the rotary drivingshaft on the punching-machine, is not absolutelynecessary to produce the eifect desired, and I can to equal advantagesubstitute therefor other and well-known devices without departing fromthe spirit of my invention.

The lower roller n is provided with an annular beveling-projection, n",by which the groove is formed inv the nail-plate during the rotation ofthe rollers. Figs. 4 and 5 fully show this construction of the lowerroller, and I prefer to make this roller as well as the upper one inthree pieces, and secured to an arbor, and confined thereon by means ofkeys or set-screws, 800., so as to be able to make the central part ofthe roll harder than the ends, as well as for the purpose of replacingthe central part, which is most likely to wear out before the endpieces.

X represents a guide or rest for the nailplate, for the purpose ofpreventing the latter from rising upward when the punch ascends afterhaving punched the nail from the plate. 3 is the waste-cutter, securedto the head eof the punching-machine for the purpose of antomaticallycutting up, the waste stock that remains on the nail-plate after thenails are punched therefrom. The frames 0 0 for the rolling-machine aremade in one piece with the sole-plate 0, that is adjustable, by means ofthe set-screw 0" or equivalent device, toward and from the punch on thepunchingmachine, for the purpose of adjusting the proper position of therolling-machine in relation to that of the punching-machine.

Having thus fully described the nature, construction, and operation ofmy invention, I wish to secure by Letters Patent, and claim- Thecombination, with a punching-machine, of a beveling-machine, providedwith beveling-rollers for forming a groove, substantially as described,and suitable connecting mechanism, by which a rotary but intermittentmotion is imparted to the rollers 10 n from the punching-machine, as andfor the purpose set forth.

In testimony that I.claim the foregoing as my own invention, I haveaffixed my signaturein presence of two witnesses.

, JOSEPH M. LAUGHLIN.

Witnesses:

ALBKlfI ANDBEN, HENRY OnADBouRN.

